diff --git a/tests/content/article_with_uppercase_metadata.rst b/tests/content/article_with_uppercase_metadata.rst
new file mode 100644
index 00000000..e26cdd13
--- /dev/null
+++ b/tests/content/article_with_uppercase_metadata.rst
@@ -0,0 +1,6 @@
+
+This is a super article !
+#########################
+
+:Category: Yeah
+
diff --git a/tests/test_readers.py b/tests/test_readers.py
index d4f0aecf..4472d7fe 100644
--- a/tests/test_readers.py
+++ b/tests/test_readers.py
@@ -34,6 +34,14 @@ class RstReaderTest(unittest.TestCase):
         for key, value in expected.items():
             self.assertEquals(value, metadata[key], key)
 
+    def test_article_metadata_key_lowercase(self):
+        """Keys of metadata should be lowercase."""
+        reader = readers.RstReader({})
+        content, metadata = reader.read(_filename('article_with_uppercase_metadata.rst'))
+
+        self.assertIn('category', metadata, "Key should be lowercase.")
+        self.assertEquals('Yeah', metadata.get('category'), "Value keeps cases.")
+
     def test_typogrify(self):
         # if nothing is specified in the settings, the content should be
         # unmodified